Abstract
An improved algorithm for calculating spectra with the use of a rapid Fourier transform and quadrature equations of the trapezium and Simpson’s methods is considered. The relative error of calculation by comparing the relative deviation of a continuous spectrum of final realization of the signal from spectra, found by means of improved algorithms at a discrete set of frequencies, is analyzed. A more precise initial estimation of a spectrum is obtained using the improved calculation algorithms.
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Translated from Metrologiya, No. 8. pp. 27–31, August, 2007.
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Len’kov, S.V. Increase in the accuracy of evaluating spectra of discrete signal realization. Meas Tech 50, 929–932 (2007). https://doi.org/10.1007/s11018-007-0174-4
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DOI: https://doi.org/10.1007/s11018-007-0174-4